# Mars 2020 Rover Perseverance - Mission Log **URL:** \ **Category:** Perseverance e Ingenuity\ **Tags:** perseverance, mars-2020, ingenuity, mission-log\ **Created:** [1 Agosto 2014, 6:47pm UTC](https://www.forumastronautico.it/t/mars-2020-rover-perseverance-mission-log/20595 "2014-08-01T18:47:19Z")\ **Posts on this page:** 1\ **Showing post:** 1105
**Author:** ![Me99](https://www.forumastronautico.it/user_avatar/www.forumastronautico.it/me99/32/267342_2.png) [@Me99](https://www.forumastronautico.it/u/Me99)\ **Post date:** [25 Luglio 2024, 7:14pm UTC](https://www.forumastronautico.it/t/mars-2020-rover-perseverance-mission-log/20595/1105 "2024-07-25T19:14:46Z")
Perseverance ha scoperto una roccia, soprannominata “Cheyava Falls”, che **potrebbe** aver ospitato vita microbica miliardi di anni fa. > “Cheyava Falls is the most puzzling, complex, and potentially important rock yet investigated by Perseverance,” said Ken Farley, Perseverance project scientist of Caltech in Pasadena. “On the one hand, we have our first compelling detection of organic material, distinctive colorful spots indicative of chemical reactions that microbial life could use as an energy source, and clear evidence that water — necessary for life — once passed through the rock. On the other hand, we have been unable to determine exactly how the rock formed and to what extent nearby rocks may have heated Cheyava Falls and contributed to these features.” ![9b3eeda359345fc6](https://discourse-data-fra.fra1.cdn.digitaloceanspaces.com/original/3X/b/7/b76bbb0f070b703af1c123e8505b444400c12fda.jpeg) ![bafkreidgagqqx6fw4sgv2vvlvbt4vwk3yzi5l7f33whcpuad3odfus7cau](https://discourse-data-fra.fra1.cdn.digitaloceanspaces.com/original/3X/e/b/ebaf602019d23f12f39cca1c4d3f56829ca04aa6.jpeg) > **[NASA’s Perseverance Rover Scientists Find Intriguing Mars Rock - NASA](https://www.nasa.gov/missions/mars-2020-perseverance/perseverance-rover/nasas-perseverance-rover-scientists-find-intriguing-mars-rock/)** > > The six-wheeled geologist found a fascinating rock that has some indications it may have hosted microbial life billions of years ago, but further research is > **[Perseverance Finds a Rock with 'Leopard Spots' - NASA Science](https://science.nasa.gov/resource/perseverance-finds-a-rock-with-leopard-spots/)** > > NASA’s Perseverance Mars rover captured this image of a rock nicknamed “Cheyava Falls” on July 18, 2024, the 1,212th Martian day, or sol, of the mission. Un breve video che descrive la scoperta. [![](https://discourse-data-fra.fra1.cdn.digitaloceanspaces.com/original/3X/2/3/2375d93f7899ae8d791e7464e2acf6d2f429493c.jpeg "Signs of Ancient Life on Mars? Here’s What We See in This Intriguing Rock #Shorts") ](https://www.youtube.com/watch?v=I7v_xuCDwnM) Edit 26/07. Il selfie nei pressi di “Cheyava Falls" > **[Perseverance’s Selfie With ‘Cheyava Falls’ - NASA Science](https://science.nasa.gov/resource/perseverances-selfie-with-cheyava-falls/)** > > NASA’s Perseverance Mars rover took this selfie, made up of 62 individual images, on July 23. A rock nicknamed “Cheyava Falls,” which has features that may bear on the question of whether the Red Planet was long ago home to microscopic life, is to... Mastcam-Z Views ‘Leopard Spots’ > **[Mastcam-Z Views ‘Leopard Spots’ in Perseverance’s Drill Bit - NASA Science](https://science.nasa.gov/resource/mastcam-z-views-leopard-spots-in-perseverances-drill-bit/)** > > NASA’s Perseverance Mars rover used its Mastcam-Z instrument to capture this view of the “Cheyava Falls” rock sample within the rover’s drill bit on July 21, > The spots seen in the rock are small, irregularly shaped light patches surrounded by a thin rim of dark minerals. These spots indicate chemical conditions during formation or alteration of this rock billions of years ago that could have provided energy for microbial life, if it was ever present at this location on Mars. Edit 28.07 Thread lungo e interessante di [Mike Malaska](https://science.jpl.nasa.gov/people/malaska/), chimico organico e astrobiologo al JPL sulla rilevanza di questa scoperta. > […] That sample is really interesting. In the big scheme of looking for life on other worlds, this is a good start point. > > It looks like there is a redox zonation around some grains. That means that at some point there was enough chemical energy for materials to “swap electrons and do chemical things.” > > Life is famous for sometimes, not always, being the middleman in those chemical reactions. Harvest that energy and use it for for “life things.” > > Do you always have to have a visible redox couple? No. sometimes it can be so small or trace that you miss it. Could be even below instrument detection limits. (Trace gas metabolism can be operating at ppm levels) > > But having a visible redox rind is definitely a “nice to have” indicator. If I was wandering around looking for rocks that might indicate life, this would be something I would want to look at closer. […] Inizia qui: > **[Mike Malaska (@mike\_malaska@deepspace.social)](https://deepspace.social/@mike_malaska/112854915810712186)** > > So the big Mars press release is here: > > Is this a big deal? (yes) > Should we have collected that sample? (yes) > Should we analyze it further with instruments here on Earth? (yes) > > How should we analyze it? Ahhhh, that's a great question, here's a... Edit 29.07 Approfondimento su The Conversation, [Sean McMahon](https://theconversation.com/profiles/sean-mcmahon-904851), Astrobiology, University of Edinburgh > **[Has Nasa found evidence of ancient life on Mars? An expert examines the...](https://theconversation.com/has-nasa-found-evidence-of-ancient-life-on-mars-an-expert-examines-the-latest-discovery-235621)** > > The find has excited scientists, but other explanations are possible. --- _[View the full topic](https://www.forumastronautico.it/t/mars-2020-rover-perseverance-mission-log/20595)._